#include <cstdio>

using namespace std;

int query(int x, int y)
{
    printf("%d %d\n", x, y);
    fflush(stdout);
    int ans;
    scanf("%d", &ans);
    return ans;
}

int sarci(int xl, int xr, int yl, int yr) //sarci pe goagal
{
    if(xl>xr || yl>yr)
        return 0;
    int mx = (xl+xr)/2;
    int left=yl, right=yr;
    int my, sol=-1;

    while(left<=right)
    {
        my=(left+right)/2;
        int q = query(mx, my);
        if(q==0)
            return 1;
        if(q<0)
        {
            sol=my;
            left=my+1;
        }
        else
            right=my-1;
    }

    if(sarci(xl, mx-1, sol+1, yr))
        return 1;
    if(sarci(mx+1, xr, yl, sol))
        return 1;
    return 0;
}

int main()
{
    int val = sarci(0, 199, 0, 199);

    return 0;
}